* Euro back at August levels on dollar weakness
* Trade and global growth optimism hurt U.S. currency
* Sterling recovers to $1.31; yen also boosted
* Graphic: World FX rates in 2019 http://tmsnrt.rs/2egbfVh
LONDON, Dec 30 (Reuters) - The euro hit a 4-1/2-month high
on Monday as optimism over U.S.-China trade relations and the
global growth outlook knocked demand for dollars.
Thin end-of-year volumes exacerbated the broad weakness in
the greenback, which has seen it dip for three straight sessions
and on Friday suffer its biggest one-day fall since June.
Investor sentiment, which has discouraged buying of the
dollar as a safe haven, was boosted during Asian hours when
China's central bank unveiled a measure to help lower borrowing
costs and boost flagging economic growth. Investors also cheered
a report forecasting that China's 2019 retail sales would be up
The euro climbed as high as $1.1211 EUR=EBS , its strongest
level since Aug. 13, in early Asian trading.
Bleak European economic data had prompted hedge funds to bet
on a weaker euro during 2019, but some signs that the euro zone
economy has turned a corner have lifted the EU single currency
in recent weeks.
The dollar index, which measures the currency against a
basket of rivals, weakened 0.1% to 96.821 .DXY .
With Friday's loss, the index's gains for the year have
shrunk to around 0.6%.
The greenback was also on the backfoot against the Japanese
yen, losing 0.3% to 109.17 JPY=EBS .
"The main drivers of the weaker dollar have likely been risk
appetite holding up in the wake of comments from the U.S.
pertaining to a Phase 1 trade deal recently, as well as the U.S.
Federal Reserve's continued repo operations, which have recently
been undersubscribed," MUFG analysts said.
Sterling was also a beneficiary, rising 0.2% to $1.3106
GBP=D3 . Against the euro, it was down 0.1% at 85.51 pence -
concerns that Britain is headed for a disruptive "hard Brexit"
at the end of 2020 have hurt the pound since mid-December.
China's yuan strengthened, holding below the key level of 7
per dollar. In the offshore market, the Chinese currency rose to
6.9752 CNH=EBS , its highest since Dec. 13.
Marshall Gittler, chief strategist at ACLS Global, said it
was noticeable how little currencies had moved during 2019, with
very low volatility and narrow trading ranges, which he put down
to "economic and monetary policy convergence".
"I expect less of both in 2020, for two reasons," he said,
noting the expected end of the Sino-U.S. trade war, which should
lead to broader economic recovery across the world.
The second reason, Gittler said, was that inflation seemed
to have bottomed out and "conceivably some countries could start
thinking about hiking rates, which would encourage monetary
policy divergence".
Later on Monday, investors will stay tuned for the Chicago
Purchasing Management Index for clues about the health of the
U.S. economy.